K.Himeno

feat: add readonly flag

1

## Summary https://swagger.io/specification/ ## Test Plan ```yaml schema: type: object properties: name: type: string readOnly: true ```

## Summary ## Test Plan

## Steps To Reproduce ```yml components: schemas: package: // reserved word type: object properties: id: type: number ``` ## The current behavior TS Error ``` A software package Identifier expected....

## Migration * https://www.openapis.org/blog/2021/02/16/migrating-from-openapi-3-0-to-3-1-0?utm_campaign=OpenAPI

## Summary fix: #90 ## Test Plan